Combination sweeper and mower.



N0. 829,803. PATENTEI) AUG. 28, 1906.

J. W. ROBB. l COMBINATION S'WEEPER AND MOWER.

APPLICATION FILED MAB.15,1906.

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UNITED STATES PATENT onrion.

COMBINATION SWEEPER AND NIOWER.

Specication of Letters Patent.

Patented Aug. 28, 1906.

Application filed March 15,1906. Serial N0. 306,162.

To all whom t may concern:

Be it known that I, JOHN W. RoBB, a citizen of the United States ofAmerica, residing at Harmarville, in the county of Allegheny and Stateof Pennsylvania, have invented certain new and useful Improvements in aCombination Sweeper and Mower, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in acombination mower and sweeper; and the invention has for its primaryobject to provide a combination mower and sweeper which can be easilyand quickly operated as a combination or the mower and sweeper operatedindependently.

To this end I have devised a mower embodying reciprocating cutter-barswhich are driven from the main supporting-wheels of the implement, andat any desired time a sweeper or rotary brush may be used in connectionwith the mower by driving the sweeper from the same source of power. Inconstructing the implement I have arranged the mower and sweeper wherebyeither one may be detached at any desired time, thus reducing the weightof the implement and permitting of it being easily and quickly manuallyoperated.

The detail construction entering into my invention will be hereinaftermore fully described and claimed, and, referring to the drawingsaccompanying this application, like numerals of reference designatecorrespondl. ing parts throughout the several views, in

Which- Figure 1 is a side elevation of an implement constructed inaccordance with my invention. Fig. 2 is a plan of the same. Fig. 3 is aplan of an implement illustrating a slightlymodified form thereof. Fig.4 is a fragmentary side elevation of the implement. Fig. 5 is across-sectional view of a portion of the implement, taken on the line ofFig. 1.

To put my invention into practice, I construct my improved implement oftwo longitudinally-disposed frames 1 and 2, carrying stub-shafts 3 3,upon the outer ends of which are journaled supportingwheels 4 4. Looselymounted upon the inner ends of the shafts 3 3 is a stirrup or yoke 5,carrying a suitable handle 6, by which the implement is manuallypropelled.

. The ends of the frames 1 V1 are bent outwardly and provided withWedge-shaped sockets 7 7 and 8 8, the sockets 7 7 being adapted toreceive wedge-shaped tongues 9 9, carried by a mower-frame 10, while thesockets 8 8 receive similar tongues 11 11, carried by a sweeper-frame12.

The mower-frame 10 consists of two depending side rails 14 14, the outerends of which are enlarged, as at 15, and provided with slots 16 16 and17 17. Between the slots 16 16 is slidably mounted a cutter-bar 18,having a plurality of pointed cuttingblades 19. Slidably mounted in theslots 17 17 is a similar cutter-bar 20, having a plurality of pointedcutting-blades 2l, adapted to coincide With the blades 19 of the bar 18,as clearly illustrated in Fig. 5 of the drawings. The cutter-bars 18 and20, which are similar to an ordinary mower, are provided withrearwardly-extending arms 22 and 23, respectively. The side rails 14 14are provided With bearings 24 24, in which is journaled a transverseshaft 25. Upon the shaft is mounted a wheel or cam 26, having aperipheral cam-groove 27, which is adapted to impart a reciprocatingrectilinear motion to the cutter-bars 18 and 20. The arms 22 and 23 ofthe bars 18 and 2O, respectively, are adapted to engage the cam-groove27 of the Wheel 26 and alternately reciprocate said bars, when a rotarymovement is imparted to the shaft 25, as will be presently described.

To support the mower-frame 10, I have provided the enlarged ends 15 15of the rails 14 14 with hangers 28 28, in which are journaled rollers 2929, said rollers being adapted to travel over the ground and support themower-frame when the implement is in operation.

The sweeper-frame 12 comprises two side rails 30 30, similar to therails 14 14, and upon the rails 30 30 is journaled a shaft 31, carryinga rotary brush 32. The one end of the shaft 31 extends beyond one of theside roo rails and is provided with a fixed pinion 33, the object ofwhich will presently appear. The sweeper-frame is mounted upon rollers34 34, similar to the mower-frame.

To impart a rotary movement to the shafts 1 o 5, f 25 and 31 of theframes 10 and 12, respectively, I provide the inner sides of the wheel 44 with circular racks 35, and meshing with r the racks are pinions 3636, mounted upon shafts 37 37, journaled upon the frames 1 and 1 1olproved mower and sweeper may be provided 2. The inner ends of theshafts 37 37 are i provided with sprocket-wheels 38 and 39. l The shaft23 of the frame l() is provided with a sprocket-wheel 40, and passingover said wheel and the wheel 39 is an endless sprocketchain 4l. Uponthe rail 30, adjacent to the pinion 33, is journaled a shaft 42,carrying a pinion 43, which meshes with the pinion 33, and asprocket-wheel 44. Passing over the sprocket-wheel 44 and the wheel 38is an endless chain 45. It will thus be seen that when the implement ismoved across the ground or the like surface a rotary movement will beimparted to the shafts 25 and 3l through the medium of the pinions andsprocket-chains just described and that a reciprocatory movement will beimparted to the cutter-bars, while a rotary movement will be imparted tothe brush 32.

In Fig. 3 of the drawings I have illustrated a slight modificationwherein the shaft 25 is provided with an extra sprocket-wheel 46, whichis driven by a sprocket-chain 47 from the sprocket-wheel 3S. In order toaccomplish this and at the same time operate the rotary brush 32, it isnecessary that the frames l and 2 be confined between the wheels 4 4 topermit of a sprocket-chain 48 being used between the frame 2 and one ofthe wheels 4. The sprocket-chain 48 is adapted to pass over asprocket-wheel 49, mounted. upon the end of the shaft 4l, also asprocket-wheel 50, mounted upon a shaft 51 The shaft 5l is journaledupon the frame 2 and carries a pinion 53 and a sprocket-wheel 54, thepinion 53 meshing with the rack of the wheel 4, while the sprocket-wheel54 may be used in connection with the sprocketwheel 46 for driving theshaft 25 when the spncket-wheel 38 has been broken o1 damage In someinstances the wheels 4 of my imwith rubber or resilient tires, wherebywhen the mower-frame is detached and the implement is being used as asweeper the wheels will not disgure any smooth surface, such as a floor,over which it may pass.

I do not care to confine myself to any specific driving mechanism usedin connection l with the implement for rotating the shafts 25 and 31,and such changes as are permissible by the appended claims may beresorted to without departing from the spirit and scope of theinvention. 1

What I claim, and desire to secure by Iletters Patent, is-

l. An implement of the type described emi bodying frames, wheelsjournaled upon said frames, a yoke connecting said frames and. carryinga handle, a mower-frame detachably carried by said frames, asweeper-frame detacliably carried by said frames, said mobwer-framecarrying a shalt, and reciprocating cutter-bars, said sweeper-framecarrying a rotary brush, means to impart a reciprocating rectilinearmovement to said cutterbars, and means to rotate said brush,substantially as described.

2. In a lawn-mower, a frame, stub-shafts carried by said frame, anddrive-wheels on said stub-shafts, a yoke having its ends mounted on saidstub-shafts and carrying a handle, a mower-frame detachably connected toone end of the first-mentioned frame, a sweeper-frame detachablyconnected to the other end of the first-mentioned frame, a sweeper insaid sweeper-frame, a pair of cutter-bars mounted to reciprocate in themower-frame, a shaft carried by said mower-frame, a cam on said shaft,coacting means carried by the cutter-bars to engage with said cam, andmeans actuated from the drive-Wheels for operating said shaft toreciprocate the cutter-bars.

3. In a lawn-mower, a frame provided with wedge-shaped sockets in itsforward ends, stub-shafts carried by said frame, drive-wheels mounted onsaid stub-shafts, a yoke connected to said stub-shafts, and a handlecarried by said yoke, a mower-frame having wedge-shaped tongues toengage in the wedge-shaped sockets of the first-mentioned frame, a pairof cutter-bars mounted to reciprocate in the mower-frame, and meansactuated by the drive-wheels for reciprocating the cutter-bars.

4. In a lawn-mower, a frame, drive-wheels supporting said frame, theends of said frame having sockets, a sweeper-frame detachably engaged inthe sockets in one end of the frame, a sweeper carried by said frame, amower-frame detachably engaged in the sockets at the other end of theframe, a pair of cutter-bars mounted to reciprocate in said mower-frame,and actuating means for the cutter-bars operated from the drive-Wheels,substantially as described.

5. In a lawn-mower, a frame carrying stub-shafts, drive-wheels mountedon said shafts, a yoke connected to said stub-shafts and carrying ahandle, a sweeper-frame connected to one vend of said first-mentionedframe, wheels supporting the outer end of said sweeper-frame, a sweepercarried by said sweeper-frame, a mower-frame connected to the other endof the first-mentioned frame, wheels supporting the outer end of saidmower-frame,' a pair of superposed cutterbars mounted to reciprocate inthe mowerframe, a shaft ournaled in the mower-frame, and carriyng a cam,pins carried by the cutter-bars to engage said cam and driving meansactuated from the drive-wheel to operate said shaft and reciprocate thecutterbars.

6. In a lawn-mower, a main frame, drivewheels supporting the main frame,said main frame comprising parallel side bars provided with sockets ineach end, a sweeper-frame IIC ITS

having tongues engagingin the sockets in one l both of said meansactuated from the drive- 1o end of the side bars of said main frame, aWheels.

sweeper mounted in said sweeper-frameI a In testimony whereof I afiiX mysignature mower-frame having tongues engaging the in the presence of twowitnesses.

sockets in the other end of the side bars of JOHN V ROBB said mainframe, Cutter-bars mounted to ret 1 eipioeate in the outer end of saidmower- Witnesses: frame, means for reciprocating the eutter- A. M.WILsoN, bars and means for operating the sweeper, E. E. POTTER.

